Vacuum cleaner



A. J UELSON VACUUM CLEANERl June 5, 1934.

y2 sheets-sheet 1 .57% ma fini/)qw June 5,1934. A JUELSQN 1,961,225l

VACUUM CLEANER 2 sheets-sheet 2 .Zz #n for: figues Jl'elsozz,

Patented June 5, 1934.

N UNITED STATES PATENT VACUURI CLEANER Agnes Juelson, Chicago, lll. Application November 23, `1931, Serial No. 576,909

9 claims. (o1. 18a-.36)

I'he invention relates to vacuum cleaners and has as its primary object the provision of improved means for separating dirt and dust from air.

A particular object of the invention is to provide an improved vacuum cleaner which is constructed in such manner that it is not necessary to employ a closely woven fabric, to separate dirt and dust from the air.

Another.. particular object of` the invention'is.

to provide' an improved vacuum cleaner of the bag-less type.

Other objects and advantages will become apparent as the following detailed description progresses, reference being had to the accompanying drawings, wherein:

Figure 1 is a vertical central section taken 'through a vacuum cleaner which embodies the invention.

Fig. 2 is a fragmentary side elevation of the improved vacuum cleaner.

Fig. 3 is a section taken on line 3-3 of Figi 1.

Fig. 4 is a sectiontaken on line 4 4 of Fig. 1.

Fig. 5 is a section taken on line 5-5 of Fig. 1.

Fig. 6 is a section taken on line 6-6 of Fig. 4.

Fig. 7 is a fragmentary plan view of a separator plate which forms part of the-improved -vacuum cleaner, and

Fig. 8 is a section taken online 3 8 of Fig. 7.

Referring to the drawings wherein a preferred embodiment of the invention is illustrated, the reference character 10 designates generally a housing which encloses the operating parts of the device. The housing 10 is mounted upon castors 11, or the equivalent, and may be drawn across a door to position it with respect to the surface which is to be cleaned. The housing 10 comprises housing members v12 and 13, the castors 11 being secured to the housing member l2. The housing member 12 encloses a separating chamber 14 in which the dirt and dust collect. The housing member 13 encloses an electric motor 15 Iand also provides passages through whichthe air which has been cleaned escapes from the housing 10. -Ahandle 17 pivoted to the housing member 13 provides means whereby the improved vacuum cleaner may be handled.

The upper edge of the housing member 12 is vprovided with aA bead 18 w 'ch is alined with a member 13, the beads 18 and 19 being adapted bead 19 formed on the lower edge of the housing between them. The separator disc or yplate is' identied by the reference character 20.

The housing member 131s detachably secured OFFICE to the housing member 12 by means comprising a split ring 22. 'I'he split ring 22 comprises segvments 22a.. and 22h, segment 22a being lprovided with a lug 220 detachably engageable with the segment 22h to secure the segmentsto each other.

The segment 22a is also provided with a lever 23 pivoted to a bracket 24 which is rigidly secured to the segment 22a.

link 26 Which is Pivoted to the lever 23 is a engageablewith a hook 27 -rigidly secured to one end of the segment22b. It will be readily understood that when the lever Fig. 4, the link 2 andg'secures the s Y 23 is in the position wherein it is illustrated in 6 co-operates with the hook 27 plit ring 22 around the housing members 12 and 13 in such manner that the split ring co-operates with the beads 18 and 19 t0 clamp ,the housing members 12 and 13 to each other.

It will be notedv that theA segments 22a and 22h are preferably V-shaped in cross section so that they tend to urge the beads 18 and 19 fr toward each other when the split ring 22 is tightened around the understood that housing. And it will be readily the lever-23 may be angularly displaced in a counter clock-wise direction (Fig. 4) around its axis so that the link 26 may be disengaged from the hook 27.`

disengaged from the hook 27, the split ring 22 may be removed from the housing and the housing member 13 and the part secured within it may be lifted from the housing member 12. This permits access to th e separator chamber 14.

Disposed within the housing member 13 and rigidly secured to it is'a -bracket 30 which has a cylindrical wall 31 provided with a plurality.

of apertures 32. 31 and closing th which the motor Formed integral with the wall e lower end of a chamber 33 in 15 is mounted is a plate 34. A

plurality of vertically disposed bolts 35 have their ends screw-threaded into bosses 36 formed integral with the plate 34. The bolts 35 extend through bores 38 formed in the housing `40 of the The motor 15 comprises an armature 43 mounted on a .verticali y posed shaft 44-which has its lower end rotatamy journaied ma boss '45 preferably formed integral with the plate 34. 'I'he is designated generally by the reference charac- 'ter- 50. The upp cured in bosses er en ds ofv the bolts 35 are sev 48a formed integral with the When the link 26 is` of the air around arms 48.

The lower end of the wall 49 flares outwardly and is provided with an annular flange 51 seated in an annular groove 53 formed in the bracket 30. Any suitable means isprovided for securing the bracket 50 to the bracket 30. The construction being such the bracket 50 may be detached from the bracket 31 so that the'bracket 50, the motor 15 and-a fan 55 may be lifted from the bracket 31 as a unit.

The cylindrical wall 49 of the bracket 50 is preferably provided with a plurality of apertures 56 and the top wall of the housing member 1,3 is preferably apertured as at 57. This construction permits air. to flow through the apertures 32 up into the upper part of the housing member 13` to be discharged from the housing through the aperture 57. Part of the air will pass through the apertures 56 and cause' sufilcient circulation the motor 50 to prevent it from over-heating.

The separator plate 4 conical in form and is preferably provided with is preferably the va relatively large-centralopening-60. Anannular flange 61 formed integral with the separator plate 20y encircles the opening 60 and seats against an annular gasket 62, the gasket 62 being clamped between the flange 61 and the bracket 3l.

The separator disc or plate 20 is a plurality of radially extending slots 64. The slots 64 are formed `by stamping small flanges 65 from the disc or plate 20 (see Figures 'I and 8) each flange 65 comprises an inclined portion 65a formed integral with the disc-or plate 20 and a portion 65a which extends. substantially parallel to the adjacent part of the body portion of the disc or plate 20. Theportion 65a of the iianges 65 are spaced from the under surface of the disc or plate 20 a slight distance so that air may escape from the chamber 14 up through 64 into `the housing member 13.

The openings formed by erably 1/64th` of an inch or less in width. However, in some instances it may be desirable to have these openings more than 1 /64th of 'an inch wide. The slotted portion of the plate 20 is preferably disposed at an angle of approximately '7 to the horizontal.

.The fan preferably comprises three grooved blades 55a, the forward surface of each blade 55a being preferably a parabolic curve. The fan of smaller diameter than the opening formed in the pl'ateeor disc 20.V The upper surfaces of the blades are preferably fiat. Each of the blades 55a is of greater height adjacent the axis of rotation of the fan than it is at'its outer end, the construction being such that when the fan is rotated in a counter clock-wise direction (Fig. 4) it creates a partial vacuum beneath the central portion thereof and drives air outwardly from its axis of rotation toward the slots 54, the air being given a whirling motion so that it passes the slots in the direction indicated by the arrow in Figure 8.A

Disposed beneath the fan 55- d the separatr disc or plate 20 is a deflector plate 'l1 which is rigidly secured to a tubular member '12 adapted to be seated in a sleeve '13 which is rigidly secured to the housing member-12 by bolts 14, or the equivalent. As indicated at '16 in Figure 1,

' a bayonet slot connection is provided between thetubular member r member 'I2' and the sleeve 'Z3 so that A '12 is detachably secured to 73. Obviously, after the housing member -13'liasbeenzremoved from the housing member 12, the deztylector plate '11 20 is preferably frustro' provided with i the slots the slots 64 are pref.-

" through the sleeve obtains in the hamber 14, air escapes may be lifted outof the housing member 12 so that the dust and dirt collected in the housing member 12 may be removed therefrom.

The'tubular member '12 and the sleeve '73 communicate with an intake pipe 'I8 which is secured to the housing member 12 by the bolts 74. The pipe 78 has a horizontal portion 79 extending beneath member 12 and it will be readily understood that4 may be secured thereto when the improved machine is to be operated.

The deflector plate '71 preferably has a mush# room shape and comprises a central frustoconicalportion 71a which has .a central opening '71h alined with 4the opening through"y the'tubular member 72. 'The frustro-conical member 71a, is inverted so that its Wall. which is preferably formed from sheet metal, lslopesl upwardly from the tubular member 72 toward the separator disc or plate 2Q. It will be noted that the incline of the wall of the frustro-conical member rIla is approximately equal to the incline of the lower edges of theblades 55a (see Fig. 1). The .diame- Vter of .the base of the frustro-lconical member '71a is preferably less than the inside diameter of the slotted area of the plate or disc 20.

' The deflector plate 'I1 alsocomprises a`frustroconical member llc which is formed integral with the frustro-conical member 71a. The wall of the frustro-conical member rllc slopes downwardlyi from the base of the frustro-conical member '1121v and is provided at its outer edge with a downwardly extending flange 71d. The diameter of the deilector member 'I1 is preferably greater than the diameter of the slotted portion or area of the separator plate'or disc 20, the slotted portion of the plate or disc 20 being substantially -annular in form. The members '11a and rIlc are preferably inclined at an angle of approximately 20 to the horizontal.'

The operation of the above described vacuum cleaner'is substantially as follows. The motor Yl5 is connected to any suitable source of eleca suitable attachment, such as a hose and nozzle, is attached to the intake pipe '78. Air is drawn through thenozzle and hose (not shown) 'into the intake'pipe. '18, and then 'I3' and the tubular member '12 -to the fan 55 which drives it outwardly as described above so that it passes slots 64 in the direction in Figure 8. In view of the trical Aenergy and pressure which from the chamber through the slots 64 but the dust and dirt drawn into'the pipe 'I8 falls downwardly over the frustro-conical portionfllc to the bottom of the housing mem- -ber 12 whereit is collected. After the improved cleaner has been-used for some time, the split ring 22 is removed therefrom so that the nous- 'ing member 13, together with the motr 15 and fan 55may be removed from the housing member 12. The separator plate 20 and the deflector plate 'I1 are then removed from the housing member 12 whereupon may be removed from the chamber 14. The def vice is then reassembled and is ready for further Access may be had to -the motor 15 by detaching the'bracket 31 from the housing member 13 and then unscrewing the bolts 35 from the bosses 36;V 'Ihe motor may be removed from the bracket 50 by removing the nuts, 41 from the bolts 35. It will be noted that the nuts 41 co-operate with beneath the indicated by the arrow,

device through the i intake the collected dust and dirt shoulders 48a on the arms 48 to hold the housing 40 in place between the arms 48.

It will be noted that the bolts 35 are the only means, in this instance, 'for detachably securing the bracket 50 and the motor 15 to the bracket 30.

My improved means for separating finely divided. particles of matter from air, or the like,`is

motor adapted to be employed in variousdevices. Therefore, the appended claims are limited to vacuum cleaners oi the type described only to theexlent indicated therein.

v While I have shown and describedcertain embodiments of my invention, itis to be understood that it is capable of many modiiications. Changes, therefore, in the construction and arrangement maybe made without departing from the spirit and scope of the invention to claim all novelty inherent in my invention as broadly as possible, in view oi' the prior art.

I claim:

1. In apparatus of the kind described, means for separating ilnely divided matter from air, said separating means ycomprising a separating to A and a driven fan plate having numerous small apertures formed therein through which said air passes, a deiledtor,

plate extending beneath said apertures, a driven fan between said separating plate and said deflector plate, and a receptacle beneah said deflector plate for receiving said ilnely divided matter.

2. Inapparatus ofthe kind described, a housing, means in said housing for. separating iinely divided matter from air, said separating means comprising a rigid member having ,numerous small apertures formed therein, a fan disposed in substantially the same plane as said apertures and adapted to advance air therethrough, and a deilector plate beneath said apertures and extending between said fan and a chamber formed in said housing for receiving said ilnely divided matter.

3. In apparatus 'of the kind described, a housing, means for separating dust and dirt from air advanced through said housing, said separating means comprising a4 {lustro-conical separating plate having an annular area provided with numerous small apertures through which air passes on its way through said housing, a detlector plate having a irustro-conical portion disposed opposite to said annular area and spaced therefrom, provided with a plurality o! blades disposed centrally of said annular portion. the outside diameter of said fan being less than the inside diameter of said annular portion.

4. In apparatus of the kind described, a housseparating means comprising a frustro-conical plate having numerous narrow slots formed therein through which said from said slots and extending over a .chamber formed in said housing, said chamberreceiving the iinely divided air passing through the chamber, and a driven fan between saidi'rustro-conical plate and said deilector plate. v

5. In apparatus of the kind described, a housing, and 'means for separating dust and dirt from air advanced through said housing, said separating means comprising a separating plate having 'passage through which the dust and air passes on its way through said housing, a deilector plate spaced L slots, through which'slots the material separated from thel an annular area provided with numerous narrow spaced therei'rom,and a driven fan disposed centrally oi' said annular portion, the outside diameter of said fan being less. than the inside diameter of said annular portion. Y

6. In apparatus ot the kind described, a housing having a compartment for receiving dust and dirt from air advanced through said housing, and means for separating dust and dirt from air advanced through said housing, said separating means comprising a separating plate having numerous small apertures through which air passes on its way through said housing, a deiiector plate between said separating plate and said compartment, said deilector plate forming a wall for one side oi' said compartment and dening an annular dirt pases to said compartment, .and a driven fan said separating plate and said deilector p a e. 7. In apparatus of the kind-described, a housing, andgmeaus for separating dust and dirt from air -advanced through said housing, said separating means comprising a separating plate having an annular area provided with numerous narrow slots less than one sixty-fourth of an inchvin width, through which slots the air passes on its way through said ho a deiiector plate disposed opposite to said annular slotted area and spaced therefrom, and 'a driven fan disposed centrally of said annular portion, the outside diameter of said fan being less than the inside diameter of said annular portion.

8. In apparatus of the ing having a compartment for receiving dust anddirt yfrom air advancedthrough said housing, and means for separating dust and dirt from air advanced through said housing, said separating means comprising annular area provided with numerous small apertures through I which air passes on its way through said housing, a deiiector plate between said separating plate and said compartment, said deilector plate being of a diameter at least as large as the outside said deilector plate co-operating with said houslng to form an annular passage-way through which dust and dirt pass to said compartment, and a driven ian between said separating plate and said deector plate.

9. In apparatus o! the kind described, a housing having a compartment for receiving dust and dirt from air advanced through said housing, means for separating dust and dirt from air advanced through said housing, said se means comprising a separating plate having an annular area provided with numerous narrow air passes on its way through said housing, a deilector kplate disposed opposite to said annular slotted area and spaced therefrom, said deilector plate co-operating with said housing to provide an. annular passage through which dirt and dust' passes to said compartment, and a driven ian disposed centrally diameter of'said annular area.`

kind described, a housiso 

